The Geomorphology of Puget Sound Beaches

Finlayson, David P.

doi:10.21236/ada477548

Cited by 37 publications

(46 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…habitats. Our experimental flow treatments mimicked unidirectional wave surge with either low-or high-amplitude velocity fluctuations and a period of 5 s, similar to waves in Puget Sound, Washington (Finlayson, 2006). We found that high unsteady flow tended to decrease fish swimming performance (Fig.…”

Section: Body Movementmentioning

confidence: 57%

“…1.0±0.5 BL s −1 ). These velocity fluctuations were adjusted for each individual fish based on body length, and approximated natural, wave-induced changes in flow speed on the coasts of Puget Sound [0-50 cm s −1 (Finlayson, 2006)]. We used a computergenerated sine function with a period of 5 s (TracerDAQ Pro, Measurement Computing, Norton, MA, USA) to create repeatable variations in water flow speed by continuously controlling the voltage to the motor and the rotational speed of the propeller in the respirometer.…”

Section: Fish Collections and Husbandrymentioning

confidence: 99%

“…We used a computergenerated sine function with a period of 5 s (TracerDAQ Pro, Measurement Computing, Norton, MA, USA) to create repeatable variations in water flow speed by continuously controlling the voltage to the motor and the rotational speed of the propeller in the respirometer. Five seconds corresponds to moderate wave periods in the San Juan Islands (Finlayson, 2006). The computer was connected to a motor controller (Movitrac AC VFD, SEW Eurodrive, Lyman, SC, USA) via a USB-1208 ADDA converter (USB DAQ Data Acquisition, Measurement Computing).…”

Section: Fish Collections and Husbandrymentioning

confidence: 99%

“…Labriform swimmers are commonly found in habitats associated with complex flows (Fulton, 2010), especially inshore coastal habitats where wavedriven water motion varies considerably across local and regional gradients . For example, on the west coast of the United States, bays and sounds that are sheltered from large storm waves regularly experience wave-driven water flows ranging from 0 to 50 cm s −1 (Finlayson, 2006;Gaylord et al, 2008). Similarly, shallow coral reef habitats in the tropics are Unsteady flow affects swimming energetics in a labriform fish (Cymatogaster aggregata) routinely subjected to wind-driven water motion (Denny and Gaylord, 2010) and can harbour over 60% of fish species that use labriform swimming as a primary means of locomotion (Fulton, 2010).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Unsteady flow affects swimming energetics in a labriform fish (Cymatogaster aggregata)

Roche

Taylor

Binning

et al. 2013

Journal of Experimental Biology

View full text Add to dashboard Cite

Unsteady water flows are common in nature, yet the swimming performance of fishes is typically evaluated at constant, steady speeds in the laboratory. We examined how cyclic changes in water flow velocity affect the swimming performance and energetics of a labriform swimmer, the shiner surfperch, Cymatogaster aggregata, during station holding. Using intermittent-flow respirometry, we measured critical swimming speed (U crit ), oxygen consumption rates (Ṁ O2 ) and pectoral fin use in steady flow versus unsteady flows with either low-[0.5 body lengths (BL) s−1 ] or high-amplitude (1.0 BL s −1 ) velocity fluctuations, with a 5 s period. Individuals in low-amplitude unsteady flow performed as well as fish in steady flow. However, swimming costs in high-amplitude unsteady flow were on average 25.3% higher than in steady flow and 14.2% higher than estimated values obtained from simulations based on the non-linear relationship between swimming speed and oxygen consumption rate in steady flow. Time-averaged pectoral fin use (fin-beat frequency measured over 300 s) was similar among treatments. However, measures of instantaneous fin use (fin-beat period) and body movement in highamplitude unsteady flow indicate that individuals with greater variation in the duration of their fin beats were better at holding station and consumed less oxygen than fish with low variation in fin-beat period. These results suggest that the costs of swimming in unsteady flows are context dependent in labriform swimmers, and may be influenced by individual differences in the ability of fishes to adjust their fin beats to the flow environment.

show abstract

Section: Body Movementmentioning

confidence: 57%

Section: Fish Collections and Husbandrymentioning

confidence: 99%

Section: Fish Collections and Husbandrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Unsteady flow affects swimming energetics in a labriform fish (Cymatogaster aggregata)

Roche

Taylor

Binning

et al. 2013

Journal of Experimental Biology

View full text Add to dashboard Cite

show abstract

“…Finlayson (2005) demonstrated that Puget Sound responds to these anomalies as a single body, and surges are greater during the winter months (99 percent are between -40 and +60 cm) than in the summer months (99 percent are between -30 and +30 cm). Finlayson (2005) calculated from 20 years of atmospheric pressure and water-level data that the inverse barometer effect for Seattle is -19.4 mm/mb; that is, for a 1 mb rise in atmospheric pressure, the water level is likely to decline 19.4 mm. These water level anomalies could have implications for circulation and flushing in Sinclair Inlet.…”

Section: Regional Setting and Forcingmentioning

confidence: 99%

Circulation exchange patterns in Sinclair Inlet, Washington

Noble¹,

Rosenberger²,

Paulson³

et al. 2013

Open-File Report

View full text Add to dashboard Cite

Detrital shadows: estuarine food web connectivity depends on fluvial influence and consumer feeding mode

Howe

Simenstad

Ogston

2017

Ecological Applications

View full text Add to dashboard Cite

We measured the influence of landscape setting on estuarine food web connectivity in five macrotidal Pacific Northwest estuaries across a gradient of freshwater influence. We used stable isotopes (δ C, δ N, δ S) in combination with a Bayesian mixing model to trace primary producer contributions to suspension- and deposit-feeding bivalve consumers (Mytilus trossulus and Macoma nasuta) transplanted into three estuarine vegetation zones: emergent marsh, mudflat, and eelgrass. Eelgrass includes both Japanese eelgrass (Zostera japonica) and native eelgrass (Zostera marina). Fluvial discharge and consumer feeding mode strongly influenced the strength and spatial scale of observed food web linkages, while season played a secondary role. Mussels displayed strong cross-ecosystem connectivity in all estuaries, with decreasing marine influence in the more fluvial estuaries. Mussel diets indicated homogenization of detrital sources within the water column of each estuary. In contrast, the diets of benthic deposit-feeding clams indicated stronger compartmentalization in food web connectivity, especially in the largest river delta where clam diets were trophically disconnected from marsh sources of detritus. This suggests detritus deposition is patchy across space, and less homogenous than the suspended detritus pool. In addition to fluvial setting, other estuary-specific environmental drivers, such as marsh area or particle transport speed, influenced the degree of food web linkages across space and time, often accounting for unexpected patterns in food web connectivity. Transformations of the estuarine landscape that alter river hydrology or availability of detritus sources can thus potentially disrupt natural food web connectivity at the landscape scale, especially for sedentary organisms, which cannot track their food sources through space.

show abstract

The Geomorphology of Puget Sound Beaches

Cited by 37 publications

References 39 publications

Unsteady flow affects swimming energetics in a labriform fish (Cymatogaster aggregata)

Unsteady flow affects swimming energetics in a labriform fish (Cymatogaster aggregata)

Circulation exchange patterns in Sinclair Inlet, Washington

Detrital shadows: estuarine food web connectivity depends on fluvial influence and consumer feeding mode

Contact Info

Product

Resources

About